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7th Grade Final Review

Total questions: 93

Worksheet time: 47mins

Name
Class
Date
1.

Which is the correct order of the scientific method?

a)

A) ask questions, test hypothesis, analyze results, carry out farther inquiry, draw conclusion, hypothesis, communicate

b)

B) communicate, carry out inquiry, draw conclusion, analyze results, hypothesis, test hypothesis, ask questions

c)

C) carry out inquiry, communicate, draw conclusions, analyze, test hypothesis, hypothesis, ask questions

d)

D) ask questions, hypothesis, test hypothesis, analyze results, draw conclusions, communicate, carry out inquiry

2.

Safety glasses must be worn when using:

a)

heat

b)

glassware

c)

chemicals

d)

all of the above

3.

Never taste chemicals and never touch chemicals with your hands.

a)

True

b)

False

4.

An accident has occurred in the lab. The first thing you should do is clean up the mess.

a)

True

b)

False

5.

It is important to follow all safety procedures in the lab in order to:

a)

prevent accidents

b)

prevent damage to the lab equipment

c)

avoid injury to others

d)

all of the above

6.

You find a bottle of liquid on the lab shelf that is missing a label. You should:

a)

give the bottle to your teacher

b)

pour contents down the drain

c)

try to find another bottle like it and assume contents are the same

d)

try to identify the liquid by tasting a drop or smelling it

7.

What is an dependent variable?

a)

what you observe

b)

what you change

c)

what stays the same

8.

Food may be brought into the lab if:

a)

if it is kept in your bag

b)

you do not eat it until your lab is finished

c)

it does not produce crumbs or waste

d)

none of the above

9.

Tongs should be used to safely pick up hot glassware.

a)

True

b)

False

10.

How do you find the average (mean) of multiple trials?

a)

add them together and divide by # of trials

b)

find the most common number

c)

subtract the least from the greatest number

d)

add them together

11.

What is an independent variable?

a)

what you observe

b)

what you change

c)

what stays the same

12.

When working in the science lab:

a)

materials can be assumed to be harmless

b)

washing your hands with soap and water

c)

unsupervised experiments are allowed

d)

all of the above

13.

It is okay to pick up broken glass.

a)

True

b)

False

14.

How can you test the hardness of a rock?

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

15.

How do you test the color of the rock?

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

16.

How do you determine the color of the rock in powder form? (what is left behind when scratched)

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

17.

How do you identify an igneous rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles, or clay; may form layers

c)

formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands

18.

How do you identify metamorphic rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles, or clay; may form layers

c)

formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands

19.

How do you identify sedimentary rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles, or clay; may form layers

c)

formed by heat/pressure, interlocking crystals texture showing layers of alternating dark and light bands

20.

What has to happen to form sediments?

a)

weather and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

21.

What has to happen to form sedimentary rock?

a)

weather and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

22.

What has to happen to form metamorphic rock?

a)

weather and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

23.

What has to happen to form igneous rock?

a)

weathering and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

24.

What is the biosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

25.

What is the atmosphere?

a)

all living things on earth

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

26.

What is the geosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

27.

What is the hydrosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

28.

What is precipitation?

a)

moisture that falls from the clouds to earth’s surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

29.

What is condensation?

a)

moisture that falls from the clouds to earth’s surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

30.

What is transpiration?

a)

moisture that falls from the clouds to earth’s surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

31.

What is evaporation?

a)

moisture that falls from the clouds to earth’s surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

32.

All of the earth’s systems can work together in every cycle.

a)

True

b)

False

33.

What is a light-year?

a)

distance of the moon from earth

b)

distance light travels from the sun to neptune

c)

distance light travels in a year

d)

distance light travels from the sun to earth

34.

Why is the same side of the Moon always visible from earth?

a)

moon does not rotate

b)

moon does not revolve around earth

c)

moon makes exactly one rotation for each revolution around earth

d)

moons rotation axis is not tilted

35.

What determines whether a lunar eclipse will be a partial or full eclipse?

a)

only the portion of the moon that passes through the penumbra is the full eclipse

b)

tilt of the earth on its axis determines the extend of the eclipse

c)

portion of the moon that passes through the earth's umbra determines whether an eclipse will be partial

d)

each pass of the moon around earth determines how the next eclipse will be seen

36.

What event is shown in the figure below?

a)

lunar eclipse

b)

solar eclipse

c)

tide formation

d)

sun spots

37.

How many times a day does the water rise and fall to produce tides?

a)

once

b)

twice

c)

three times

d)

four times

38.

Which statement best describes the phases of the moon?

a)

during waxing and waning phase, the amount of light received by the sun changes

b)

during the waxing phase, less of the moon's near side is lit each night

c)

during the waning phase, less of the moon's near side is lit each night

d)

during both waxing and waning, the moon is not visible to people from earth

39.

What are the large dark areas seen on the surface of the moon?

a)

craters

b)

caleras

c)

highlands

d)

maria

40.

What feature of the moon was formed from objects impacting the surface?

a)

maria

b)

rivers

c)

highlands

d)

craters

41.

Which is a layer of the earth?

a)

crust

b)

lithosphere

c)

mantle

d)

all of the above

42.

How many major tectonic plates for the earth have?

a)

5

b)

6

c)

8

d)

10

43.

How do tectonic plates move?

a)

from the wind

b)

they are alive

c)

they are floating

d)

they are heavy

44.

The movement of tectonic plates can cause...

a)

tornadoes

b)

hurricanes

c)

blizzards

d)

earthquakes

45.

Which type of boundary causes a lot of earthquakes?

a)

convergent

b)

divergent

c)

transform

46.

Which type of boundary causes mountains/volcanoes?

a)

convergent

b)

divergent

c)

transform

47.

Which type of boundary causes seafloor spreading?

a)

convergent

b)

divergent

c)

transform

48.

Plates move around very quickly.

a)

True

b)

False

49.

What causes the different seasons on Earth?

a)

distance from the sun

b)

earth's tilt on its axis

c)

shape of the earth's orbit

d)

changes in the sun's brightness

50.

What is the main source of energy that drives the water cycle?

a)

wind

b)

ocean tides

c)

the sun

d)

earth's rotation

51.

What is the process of rocks being broken down into smaller pieces?

a)

deposition

b)

erosion

c)

weathering

d)

melting

52.

How can you test the hardness of a rock?

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

53.

How do you test the color of the rock?

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

54.

How do you determine the color of the rock in powder form? (what is left behind when scratched)

a)

scratching on a streak plate

b)

shining a light on the rock

c)

scratching it with a penny or nail

d)

observing it through a magnifying lens

55.

What is the hardest rock/mineral on the hardness scale?

a)

Quartz

b)

Marble

c)

Diamond

d)

Slate

56.

How do you identify an igneous rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles, or clay; may form layers

c)

formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands

57.

How do you identify metamorphic rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles, or clay; may form layers

c)

formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands

58.

How do you identify sedimentary rock?

a)

interlocking crystals with no layering or color banding, may contain small holes

b)

formed of particles like sand, pebbles or clay; may form layers

c)

formed from heat/pressure, interlocking crystal texture showing layers of alternating dark and light bands

59.

What has to happen to form sediments?

a)

weather and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

60.

What has to happen to form sedimentary rock?

a)

weather and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

61.

What has to happen to form metamorphic rock?

a)

weathering and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

62.

What has to happen to form igneous rock?

a)

weathering and erosion

b)

heat and pressure

c)

compaction and cementation

d)

cooling of the rock

63.

What is the biosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

64.

What is the atmosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

65.

What is the geosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

66.

What is the hydrosphere?

a)

all living things

b)

all water on earth

c)

all solid rock and minerals on earth

d)

mixture of gases forming a layer around earth

67.

What is precipitation?

a)

moisture that falls from clouds to earth's surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

68.

What is condensation?

a)

moisture that falls from clouds to earth's surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

69.

What is transpiration?

a)

moisture that falls from clouds to earth's surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

70.

What is evaporation?

a)

moisture that fall from clouds to earth's surface

b)

plants releasing water vapor through the leaves

c)

liquid rising to clouds and changing into a gas

d)

gas changing to a liquid by water drops forming a cloud

71.

All of the earth's systems can work together in every cycle.

a)

True

b)

False

72.

An object will resist a change in motion due to:

a)

Gravity

b)

Inertia

c)

Friction

d)

Velocity

73.

Newton's Second Law Formula is:

a)

F = m x a

b)

F = m / a

c)

F = a / m

d)

F = m + a

74.

Newton's Third Law states:

a)

Every action has an equal and opposite reaction

b)

Objects stay in motion unless acted on by a force

c)

Gravity pulls everything down

d)

Balanced forces move an object around

75.

A book sitting on a table demonstrates:

a)

Newton's First Law

b)

Newton's Second Law

c)

Balanced forces

d)

Unbalanced forces

76.

Friction:

a)

always slows motion

b)

speeds up motion

c)

has no effect on motion

d)

changes mass

77.

When a ball is kicked and accelerates, which law is shown?

a)

First Law

b)

Second Law

c)

Third Law

d)

Law of Friction

78.

Which law is shown when you push backward on the ground and the skateboard moves forward?

a)

Newton's 1st law

b)

Newton's 2nd law

c)

Newton's 3rd Law

d)

Gravity

79.

A car slows due to brakes. The unbalanced force acting on it is:

a)

gravity

b)

friction

c)

inertia

d)

mass

80.

Which is an example of unbalanced forces?

a)

picture hanging on a wall

b)

stationary book

c)

box sitting on the floor

d)

rocket launching

81.

When two equal forces act in opposite directions on an object:

a)

object accelerates

b)

object moves faster

c)

object does not move

d)

object slows down

82.

A sky diver falling with air resistance is an example of:

a)

balanced forces

b)

unbalanced forces

c)

constant velocity

d)

Newton's 3rd law

83.

The total force acting on an object is called:

a)

gravity

b)

net force

c)

friction

d)

mass

84.

A rocket lifting off the ground demonstrates which law?

a)

First law

b)

Second Law

c)

Third Law

d)

Law of Gravity

85.

If two people push a box in opposite directions with equal force, the net force is:

a)

zero

b)

double

c)

negative

d)

faster

86.

Speed is calculated using the formula:

a)

distance x time

b)

distance / time

c)

time / distance

d)

time x distance

87.

A car travels 120 meters in 10 seconds. What is its speed?

a)

10 m/s

b)

12 m/s

c)

15 m/s

d)

20 m/s

88.

If an object speeds up, it is experiencing:

a)

acceleration

b)

balanced force

c)

constant speed

d)

inertia

89.

Velocity differs from speed because it includes:

a)

time

b)

direction

c)

distance

d)

mass

90.

A bike goes from 0 m/s to 10 m/s in 2 seconds. Its acceleration is:

a)

2 m/s2

b)

5 m/s2

c)

10 m/s2

d)

20 m/s2

91.

A car travels north at 20 m/s. Another car travels south 20 m/s. Which statement is correct?

a)

they have the same velocity

b)

they have the same speed but different velocity

c)

they have different speeds

d)

they have zero velocity

92.

A ball rolls at a steady speed across the floor. Its acceleration is:

a)

positive

b)

negative

c)

zero

d)

changing

93.

A car moves 100 meters in 5 seconds. Its speed is:

a)

10 m/s

b)

15 m/s

c)

20 m/s

d)

25 m/s